May 11, 2010 - Queen Elizabeth II invites David Cameron to be the new prime minister, after Gordon Brown's resignation. He announces his intent to form a coalition government with the Liberal Democrat party.
July 20, 2010 - Makes trip to the U.S., meeting with President Barack Obama.
July 20, 2011 - Cameron addresses an emergency session of the House of Commons about the phone hacking scandal at News Corp. Cameron defends his ties to Rupert Murdoch and the former editor of The News of the World, Andy Coulson, who previously worked as Cameron's communications director.
June 14, 2012 - Cameron testifies before the Leveson Inquiry regarding the News Corp. phone hacking scandal
September 26, 2012 - Appears on the Late Show with David Letterman.